Extract a method purge_one_batch

Author: jrafanie

app/models/mixins/purging_mixin.rb

@@ -228,17 +228,7 @@ def purge_in_batches(conditions, window, total = 0, total_limit = nil)
         end
 
         batch_records = unscoped.where(:id => batch_ids)
-        count =
-          if purge_method == :destroy
-            destroyed = batch_records.destroy_all
-            destroyed.detect { |d| !d.destroyed? }.tap do |failed|
-              raise "failed removing record: #{failed.class.name} with id: #{failed.id} with error: #{failed.errors.full_messages}" if failed
-            end
-
-            destroyed.count
-          else
-            batch_records.delete_all
-          end
+        count = purge_one_batch(batch_records)
         break if count == 0
 
         total += count
@@ -248,5 +238,18 @@ def purge_in_batches(conditions, window, total = 0, total_limit = nil)
       end
       total
     end
+
+    def purge_one_batch(scope)
+      if purge_method == :destroy
+        destroyed = scope.destroy_all
+        destroyed.detect { |d| !d.destroyed? }.tap do |failed|
+          raise "failed removing record: #{failed.class.name} with id: #{failed.id} with error: #{failed.errors.full_messages}" if failed
+        end
+
+        destroyed.count
+      else
+        scope.delete_all
+      end
+    end
   end
 end